Rename esphomeyaml to esphome (#426)

* Rename

* Update

* Add migration

* Fix

* Fix dashboard

* Change test

* Fixes

* Code cleanup

* Fix import order

* Update

* Automate docker builds

* Shellcheck

esphome/py_compat.py

@@ -0,0 +1,71 @@
+import functools
+import sys
+
+PYTHON_MAJOR = sys.version_info[0]
+IS_PY2 = PYTHON_MAJOR == 2
+IS_PY3 = PYTHON_MAJOR == 3
+
+
+# pylint: disable=no-else-return
+def safe_input(line):
+    if IS_PY2:
+        return raw_input(line)
+    else:
+        return input(line)
+
+
+if IS_PY2:
+    text_type = unicode
+    string_types = (str, unicode)
+    integer_types = (int, long)
+    binary_type = str
+else:
+    text_type = str
+    string_types = (str,)
+    integer_types = (int,)
+    binary_type = bytes
+
+
+def byte_to_bytes(val):  # type: (int) -> bytes
+    if IS_PY2:
+        return chr(val)
+    else:
+        return bytes([val])
+
+
+def char_to_byte(val):  # type: (str) -> int
+    if IS_PY2:
+        if isinstance(val, string_types):
+            return ord(val)
+        elif isinstance(val, int):
+            return val
+        else:
+            raise ValueError
+    else:
+        if isinstance(val, str):
+            return ord(val)
+        elif isinstance(val, int):
+            return val
+        else:
+            raise ValueError
+
+
+def format_bytes(val):
+    if IS_PY2:
+        return ' '.join('{:02X}'.format(ord(x)) for x in val)
+    else:
+        return ' '.join('{:02X}'.format(x) for x in val)
+
+
+def sort_by_cmp(list_, cmp):
+    if IS_PY2:
+        list_.sort(cmp=cmp)
+    else:
+        list_.sort(key=functools.cmp_to_key(cmp))
+
+
+def indexbytes(buf, i):
+    if IS_PY3:
+        return buf[i]
+    else:
+        return ord(buf[i])